Headlight.



H. H TRAVIS.

Patented June 25, 1918.

5] wuem ton Homer H Tm W's HOMER H. TRAVIS, OF COLUMBUS, OHIO.

HEADLIGHT.

Specification 01' Letters Patent.

Patented June 25, 1918.

Application flied December 22, 1916. Serial No. 188,301.

To 027 whom it may concern:

Be it known that I, Henna II. Tnavis, a citizen of the United States.residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Headlights, of which thefollowing is a specification.

The present invention relates to improve ments in headlight attachmentsand it is the principal object of the. invention to provide anattachment whereby the light rays emitted by the headlight. may bedimmed when an intense l ght is not required, such as upon the streetsof a city or other illuminated highway.

The preferred embodiment of my invention is shown in the accompanyingsheet of drawings, in which similar characters of reference designatecorresponding parts, and

in which:

Figure 1 is a view of a lamp constructed in accordance with myinvention, the rear portion of this lamp being shown in vertical sectionand also showing the electric bulb in its forward position, wherein anintense beam of light is produced.

Fig. 2 is a similar view of the rear portion of thereflector, but.showing the elec, tric bulb in its rcarmost position to produce anon-glaring light, and.

Fig. 3 is a section taken on line 33 of Fig. I.

In these drawings, the lamp casing or body is designated by thereference numeral 1 and within this casing, there is located the usualtype. of reflector 2. This reflector may be mounted within the casing inany desired manner, this portion i'orming no part of the presentinvention. The reflector is, however, provided wlth a. central opening 3in its rear wluch is large enough to permit the free passage rearwardlythercthrough of.

the electric bulb -l. Within this opening 3, there is rigidly secured asleeve 5, within which a slide member (3 is slidably mounted. This slidemember is also provided with a central sleeve 7, within which the socketmember 8 for the lamp is adjustably secured. by means of the adjustingscrew shown at S). The socket member 8 and lamp 4 are of the type nowgenerally in use and the adjust.- ment to obtain the proper focalposition of the lamp, may be cfi'ected by loosening the screw 9 andmoving the, socket member to its' desired position, afterward tighteningthe screw 7 to rigidly maintain thisposition. The electrical connectionsto the bulb are of the conventional form and current; may be suppliedthereto through the medium of wires 10. It will be noted by reference toFigs. 1 and .2 that the sleeve 5 is of a size to permit, the movementthereinto of the bulb 4 and in order that this may be accomplished fromthe drivers seat, I have slot.- ted the sleeve as is shown at. 11. Theslide member itself is provided with an upwardly projecting ear 12operating in this slot' to efl'ect the adjustment of the, bulb and toalso prevent the relative rotation between the sleeve and slide member.To this car there is connected :1 wire 13 which passes out through thecasing, as shown at 14 and is confined within the flexible tubing 15.This tubing and wire may-lead to any position, but preferably to aposition adjacent, the drivers seat.

Thus,when an intense beam of light is desired, the electric bulb ismoved to the position shown in Fig. 1. If this bulb is not in properfocal alinement with the reflector, the lens ring 16 is remove'd and thereflector withdrawn temporarily, to permit the adjustment back or forthof the bulb 4, by first loosening the screw 9 which may be effectedthrough the openings 17 and 18 in the sleeve 5 and slide member 6respectively. After the proper djustment has been attained with the car12 at its forward limit, of movement, as is shown, the screw is .againtightened and the lamp assembled.

Should it then be desired to have a nonglaring light. the wire 13 may bewithdrawn so that the bulb. 4 is moved to a position within the sleeve5, s is shown in Fig. 2. The same rays of light are given off by thelamp in this position. but these rays are not conccntratmi by thereflector :3. The light given in this position has been found to beamply suflicieut for all city. purposes and the glare from the reflectoris thereby, removed. When it is desired to again move the lamp to itsforward position. the proper focal position thereof will he, found to beat that point where the car 12 engages the edge of the reflector L. asis shown in Fig. 1.

hat 1 claim, is:

In combination with a reflector having an opening formed in the rearportion thereof, a sleeve en'mrcd in said opening provided with alongaudinally extending way and an opening, a lubulsir member slidablein said sleeve and having an opening formed therein adapted to alinewith said openin in the sleeve, 11 1mg carried by said mem er receivedin the longitudinal way, a second sleeve carried by the tubular memberfor lamp therein, and lamp receiving an electric engaging means on saidsecond sleeve POSI- tinned adjacent the opening formed in the slidablemember. In testimon in presence 0 HOMER Witnesses:

WALTER E. L. BOOK, A. L. PHELPS.

whereef I affix my signature two wltnesse.

H. TRAVIS.

